Duplicate System Drive in Windows Server 2003?

Posted on 2009-12-22
Last Modified: 2012-05-08
Hello, all.

We have an interesting problem on a terminal server that is almost ready to go into production. After installing Windows Server 2003 SP2 on a mainboard with Intel's Embedded Server RAID Technology II (RAID 1), we noticed that there is a duplicate "System" volume that is taking the drive letter W: in Windows explorer.

This drive letter on our client site is a mapped network share, so we clearly don't want there to be conflicts. However, the disk drive W: does not appear in the disk management utility to be modified or removed.

The ''phantom'' W: drive's properties page has the same exact amounts of free and used space that the C: System volume has. However, the W: drive when expanded appears to be a copy of the Administrator's profile directory only.

We have tried using different RAID solutions, thinking it might be a mirroring problem, and we have tried to delete the phantom volume using Recovery Console. The server is not yet in production, so we can be a little destructive, but I'd prefer to avoid a complete rebuild if possible.

Thank you for your helpful suggestions in advance!

Question by:rosects
    LVL 16

    Expert Comment

    What happens if you pull one of the drives and boot it up on a single drive?

    Author Comment

    We tried that - no change. Sorry, that should have been above!

    Accepted Solution

    Issue has been resolved. A policy issue was causing the drive to map when it should not have. Mystery solved!

    Featured Post

    Highfive + Dolby Voice = No More Audio Complaints!

    Poor audio quality is one of the top reasons people don’t use video conferencing. Get the crispest, clearest audio powered by Dolby Voice in every meeting. Highfive and Dolby Voice deliver the best video conferencing and audio experience for every meeting and every room.

    Join & Write a Comment

    Many of us need to configure DHCP server(s) in their environment. We can do that simply via DHCP console on server or using MMC snap-in on each computer with Administrative Tools installed in a network. But what if we have to configure many DHCP ser…
    On July 14th 2015, Windows Server 2003 will become End of Support, leaving hundreds of thousands of servers around the world that still run this 12 year old operating system vulnerable and potentially out of compliance in many organisations around t…
    Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
    Here's a very brief overview of the methods PRTG Network Monitor ( offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

    734 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    21 Experts available now in Live!

    Get 1:1 Help Now